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58 lines
2.4 KiB
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58 lines
2.4 KiB
HTML
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<title>Z80-Case - Using as</title>
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<link rel="up" href="Z80-Syntax.html#Z80-Syntax" title="Z80 Syntax">
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<link rel="prev" href="Z80_002dRegs.html#Z80_002dRegs" title="Z80-Regs">
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<!--
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This file documents the GNU Assembler "as".
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Copyright (C) 1991-2015 Free Software Foundation, Inc.
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Permission is granted to copy, distribute and/or modify this document
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under the terms of the GNU Free Documentation License, Version 1.3
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or any later version published by the Free Software Foundation;
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</head>
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<body>
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<div class="node">
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<a name="Z80-Case"></a>
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<a name="Z80_002dCase"></a>
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<p>
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Previous: <a rel="previous" accesskey="p" href="Z80_002dRegs.html#Z80_002dRegs">Z80-Regs</a>,
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Up: <a rel="up" accesskey="u" href="Z80-Syntax.html#Z80-Syntax">Z80 Syntax</a>
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<hr>
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</div>
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<h5 class="subsubsection">9.53.2.3 Case Sensitivity</h5>
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<p><a name="index-Z80_002c-case-sensitivity-2520"></a><a name="index-case-sensitivity_002c-Z80-2521"></a>
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Upper and lower case are equivalent in register names, opcodes,
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condition codes and assembler directives.
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The case of letters is significant in labels and symbol names. The case
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is also important to distinguish the suffix ‘<samp><span class="samp">b</span></samp>’ for a backward reference
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to a local label from the suffix ‘<samp><span class="samp">B</span></samp>’ for a number in binary notation.
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</body></html>
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